i'd like to be able to toss a good growl effect into my playing without thinking about it, using it for maybe just one note or a whole passage. so what is bass growl and where does it come from? as best i can tell it's just the string hitting the open frets lightly while it is sounding. the string requires a lot of movement for this, so bass growl generally lives on the E and A strings, open or fretted on frets 1 through 5. so range seems limited for this effect. bass setup must have a lot to do with it. if your bass has low action it should be a lot easier to bring this effect out. i've never heard of anyone wanting a high action on their guitar anyway(...?), so i'd think most basses are set up for lowest action with a clean sound. the tricky mechanic is getting that required extra string movement without ruining your volume dynamic. just plucking the string harder brings too much volume. moving closer to the middle of the string (where the neck meets the body of the guitar) helps, but i don't know if it's the whole solution. it's still a bit loud but maybe with practise i'll get more control. how do you guys get the growl effect? are preamp settings a key to this? does anyone have links to soundbites with good examples of bass growl?